johnston



' (No Model.) 2 Sheets-Sheet 1.

H. N. JOEHIS'I'OI.

Harvester. 4 No. 237,539. Patentedreb. 8,1881.

N.PETEHS, FHOT0-LITHOGRAFHER. WASHINGTON. D C.

(No Model.) -2 Sheets-n-Sheet 2.

H. N. `JOHNSIO-N.'

' A Harvester. N0. 237,539. Ptented Feb. 8,1881.

Inventur:

N.FETEVRS, PHOTO-LITNDGRAPMEA WASHINGTON. D. C.

UNITED STATES PATENT OFFICE.

HENRY N. JOHNSTON, E BRocKPoRT, NEW YORK.

HA RVESTER.

SPECIFICATION forming part of Letters Patent No. 237,539, dated February8, 1881.

Application filed April 12, 1880. V(No model.)

To all whom it may concern:

Be it known that I, HENRY N. JOHNSTON a citizen of the United States,residin gat Brockport, in the county of Monroe and State of New York,have invented certain new and useful Improvements in Harvesters; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this specification.

My invention relates to improvements in harvesters in which the grain iscarried on a canvas belt to a platform, where it is bound by suitablebinding mechanism.

The objects of my improvements are to provide means for carrying thegrain to the bind ing-platform without the belt or band passing over thedrive-wheel 5 and it consists in details of construction, that will behereinafter more fully set forth in the specification and claims, andpointed ont in the accompanying drawings, in which- Figure I is a planview of my machine; Fig. II, a rear elevation; Fig. III, an endelevation; Fig. IV, a detail View of the front or guide wheel and mannerof attaching same; Fig. V, a detail view of the pawl and ratchetwheelfor raising and lowering one or both sides of the machine.

A is the main platform, supporting the cutter-bars D and carrying-beltC.

E is the drive-wheel, which is connected on one side to thedriving-shaft F by a universal jor toggle joint, e, its opposite sidebeing connected by a rod, H, passing under the main platform andattached to the guide-wheel frame I. A bevelgear wheel, G, on shaft Factuates a pinionshaft, J, through the intervention of the pinion j, tothe opposite end of which is attached the pitman K for operating thecutter-bar D. A slotted board, L, hinged to the rear of the platform',is intended to form a guide for the forksf on the forli-band M, theforks projecting through the slot g of the board L, the board beinghinged in any suitable way, preferably by simple dat hinges attached tothe platform at each end, and held, when turned up, by a suitablelocking device, such as indicated at c, Figs. I, II, and III.

Whenit is intended to cut long grain, such as rye and wheat, the slottedboard L may belowered and extended, as indicated in Fig. I; and forshort grain, such as oats, Src., the boardL may be turned up, asindicated in dotted lines in Figs. II and III. The board may beloweredand raised by hand, although suitable mechanism might be attached to itin such 6o manner as to enable the driver to raise and lower it withoutdescending to the ground.

The forked band carries the heads of the grain to the bindingplatformand runs over sprocket-wheels N.- The rod H is secured toshaft-extension of rear wheel, E, and to frame I of guide-wheel O insuch manner that the two wheels are compelled to move in oppositedirections. The main platform is supported by the drive-wheelvE,guide-wheel O, and 7o grain-wheel P, and the inner end of the platformis raised and lowered in the following manner:

The guide-wheel O is mounted in an auxiliary frame, Q, which is pivotedat its front end to the front of frame I by pivot Q', whereby themachine may be raised and lowered independently of the wheel 0. TheauXiliary frame Q, in which wheel 0 is mounted, is provided with an eye,a, through which 8o passes a cord, R, around a pulley, S, fixed to mainplatform, thence over a pulley, S', attached toa bridge-piece,T,supported on standards T of main frame, thence over a pulley, S2, whosemovementis regulated by a pawl, p, 8 5 and ratchet-Wheel p', both ofwhich are aff ixed to standards U on bridge-piece T, and said pawl andratchet-wheel are actuated by a lever, V, operated by the driver. Ahandle, d2 cl3, is secured to pulleys S2 S6', for winding 9o up the cordafter the frame is lowered and it is desired to raise it. By releasingthe pawl from the ratchet-wheel by means ofthe levers V V' the cordunwinds from the pulley S2 and the machine-front is lowered. 9 5

The outer end of the machine is raised and lowered in a similar manner,as follows: The grainwheel l? is mounted in bar W, pivoted at its frontend, so that its free or rear end has a vertical motion. Aneye, a', isattached 10o to the free end for the passage of a cord, R', which alsopasses around a pulley, S3, thence over a pulley, S4, to pulley S5,thence around pulley S6, having a pawl and ratchet-wheel on standards U,similar to and operated in same manner as one already described. Bylowering Wheels O and l? the machine may be converted into a header.

Any suitable binding mechanism can be attached to or connected With thegrain-platform B.

The forked band M is actuated by sprocket- Wheels N, (see Fig. IL) Whosediameters are smaller than the diameters ofthe rollers over Which thecanvas belts pass, so that the butts of the grain carried by the frontbelt will move toward the binding-platform faster than the heads carriedon theforked band, and the grain delivered on said platform in bettershape for binding than if the heads and butts were delivered there atthesame time.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a harvester, the combination, with a folding` slotted board forextending the platform, of a front grain-carrying belt actuated bysuitable mechanism, anda rear forked chain or belt the forks of whichpass through the slot in the folding-board, substantially as described,and for the purpose set forth.

2. In a harvester, the folding slotted board L for extending thebelt-platform, substantially as described.

t 3. In a harvester, the combination of a rear driven/heel having auniversalg'oint-carrying shaft, actuating a cu tter-bar through theintervention of suitable mechanism, with a front or guide Wheelconnected to the drive-wheel by a rod passing under the grain-platform,substantially as described.

' 4. In a harvester, the combination of a rear drive-Wheel the shaft ofwhich is provided with a universal joint With a front guide-Wheelmounted in a movable auxiliary frame, the turning movement of the Wheelsbein g directed by a rod passing under the platform and secured at oneend to the drive-wheel shaft and at the opposite end to the auxiliaryplatform, as described.

5. In a harvester, au auxiliary frame pivoted to the front platform soas to support the guide-Wheel, and having a rod secured thereto and tothe shaft of the drive-wheel, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY N. JOHNSTON.

Witnesses F. E. WILLIAMS, C. F. HAMLIN.

